Mathematica 9 is now available
Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2009

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: find the maxima in a function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg97084] Re: [mg97052] find the maxima in a function
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Thu, 5 Mar 2009 04:52:26 -0500 (EST)
  • Reply-to: hanlonr at cox.net

f[x_] := 1/(8*(Pi*t)^(3/2))*Exp[(-(x^2 + y^2 + z^2)/4*t)]

Reduce[f'[x] == 0, x]

t!=0\[And]x\[LongEqual]0

Off[Solve::ifun]

Solve[f'[x] == 0, x]

{{x->0}}


Bob Hanlon

---- Oliver <sch_oliver2000 at yahoo.de> wrote: 

=============
Hallo,
how can one find the maxima by using mathematica for the following function:

f[x_] := 1/(8*(Pi*t)^(3/2)) * Exp[(-(x^2 + y^2 + z^2)/4*t)]

i mean, the first derivation equal Zero.
Thanks in advance..
Oli.



  • Prev by Date: Re: FullGraphics of Graphics3D
  • Next by Date: Re: question about mathlink.h
  • Previous by thread: Re: find the maxima in a function
  • Next by thread: Re: find the maxima in a function